Toyota Sienna Service Manual: Terminals of ECU

Toyota Sienna Service Manual / Cruise control / Dynamic laser cruise control system / Terminals of ECU

1. CHECK DISTANCE CONTROL ECU

CHECK DISTANCE CONTROL ECU

Reference: waveform 1

HINT:

Terminal: LRDD - SGND
Gauge set: 2 V/DIV., 10 ms./DIV.
Condition: ignition switch in the ON position

CHECK DISTANCE CONTROL ECU

Reference: waveform 2

HINT:

Terminal: LRRD - SGND
Gauge set: 2 V/DIV., 5 ms./DIV.
Condition: ignition switch in the ON position

2. CHECK ECM

CHECK ECM

If the value is not within the specified range, the ECM may have a malfunction.

3. CHECK LASER SENSOR

CHECK LASER SENSOR

Reference: waveform 1

HINT:

Terminal: LRDD - SGND
Gauge set: 2 V/DIV., 10 ms./DIV.
Condition: ignition switch in the ON position

CHECK LASER SENSOR

Reference: waveform 2

HINT:

Terminal: LRRD - SGND
Gauge set: 2 V/DIV., 5 ms./DIV.
Condition: ignition switch in the ON position

4. BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

Problem symptoms table

HINT: Use the table below to help determine the cause of the problem symptom. The likely causes of the problem are indicated in descending order. Check each suspected area in order. Re ...

Diagnosis system

1. DIAGNOSIS FUNCTION The diagnosis function makes the light and the multi-information display come on, and the CRUISE main indicator light blink as shown in the illustration. When ...

Other materials:

Removal
1. REMOVE INSTRUMENT CLUSTER FINISH PANEL CENTER NO.1 (See page IP-8) 2. REMOVE INSTRUMENT CLUSTER FINISH PANEL CENTER NO.2 3. REMOVE SHIFT LEVER KNOB SUB-ASSEMBLY HINT: (See page AX-146 for U151E, AX-146 for U151F) 4. REMOVE INSTRUMENT CLUSTER FINISH PANEL ASSEMBLY CENTER (See page IP-9) 5 ...

Replacement
1. REPLACE GENERATOR DRIVE END FRAME BEARING (a) Remove the 4 screws and retainer plate from the drive end frame. (b) Using SST and a hammer, tap out the drive end frame bearing from the drive end frame. SST 09950-60010 (09951-00250), 09950-70010 (09951-07100) (c) Using SST and a ...

Rear Air Conditioning Control Panel Circuit
DESCRIPTION This is the rear A/C system control signal circuit as well as the power supply circuit of the rear A/C control assembly. Pulse signals regarding rear A/C control panel switch operation are transmitted between the A/C amplifier and rear A/C control assembly. WIRING DIAGRAM ...